Annexation of Arequipa

The Annexation of Arequipa (18 March-7 April 1890) was a brief war fought between Chile and Peru in early 1890. The Chilean government, dominated by the Socialist Party of Chile, believed that the Chilean core of Arequipa in Peru belonged to the Chilean people, and claimed that Arequipa was included in the cessions granted to Chile by Peru at the end of the War of the Pacific. The Peruvian government refused to acknowledge these claims, and a Chilean army of 27,000 troops was dispatched to occupy the region. They were met with no resistance by the regular Peruvian army, and the Peruvian government made peace with Chile on 7 April 1890 and granted the region to Chile.